But, appearance counts, so the D-21 was just never as popular as the D-28 despite
its lower price. The D-21 was discontinued right at the time the Brazilian rosewood
supply ran out in early 1969, so all of the D-21s were made of Brazilian rosewood.

Please click the small image

Basically, the D-21 has all the appointments of the D-18, with
rosewood back and sides instead of mahogany. The only exception is that the center
decoration on the back of the D-21 and D-28 are identical.

Even today, the D-21 remains an underappreciated model. If you're looking for a vintage
Martin dreadnought made of Brazilian rosewood, the D-21 is the one to consider if
you're watching your budget.